Random thought

I have always thought and said that after I have all the babies that I am able to have, I will get a boob job. But now that my husaband and I are ttc for baby #1, all I can think about is using that money to spoil and buy necessities for my future baby(ies). Thinking about it now, I know I will never be able to let myself spend that much money on myself when I have a baby or babies. Is this normal to feel this way even before the fact?